Inner-tube boot



Patented ug. 30, 1927.

UNITED STATES BENJAMIN V. GILMORE, 0F GAULEY BRIDGE, WEST VIRGINIA.

INNER-TUBE Boor.

.application led September 22V, 1926. Serial No. 137,059.

rIlhis invention relates to an improved inner tube boot and seeks, among other objects, to provide adevice of this character which, even though the tire casing. is badly torn or severed, as by a blow out will, nevertheless, effectually retain and protect the inner tube at the rupture in the casing.

The invention seeks, as a further object, to provide a boot wherein, when applied, 'the body of the boot will be retained against bulging by retaining straps wrapped in op-` posite directions about the body.

And the invention seeks, as a still further object, to provide a boot wherein, when the boot is applied, said straps will be securely anchored.

In the drawings: Y l

Figure 1 is a. perspective view of my improved boot.

Figure 2 is a sectional view showing the boot applied and taken through the boot at one of the retaining straps thereof.

Figure 3 is a view similar to Figure taken through the boot at the other of the retaining straps thereof.

In carrying the invention into effect, I employ an arcuate boot-'body `10 transverse ly curved to fit an inner tube and, of course, the body will be made in different sizes to suit the varying dimensions of different inner tubes. At its inner radius, the body is inediately split longitudinally from end to end to provide sides 11 having square edges 12 and while any suitable material may be employed in forming the body still, said body is preferably constructed of rubber and fabric or cord laininatioiis vulcanized into a composite unit. In any event, the body includes a preferably canvas back 13 which covers practically the whole of the outer side of the body, said back terminating liush with the edges 12 of the sides of the body and close to the ends thereof, and integral with said baclr is a pair of retaining straps 14 extending from opposite edges of the back near the ends thereof. These straps are preferably oblong in configuration, being of corresponding uniform width, and, as will be observed, the inner longitudinal edges of the straps both touch the transverse center line of the body. The ends of the body are respectively skived, as'indicated at'15, to a feather edge, so as to form a smooth joint with a tire casing and sewed or otherwise secured to the inner free longitudinal margin of one of the sidesv 11 of the body is a relatively soft and pliable flap 16 which projects beyond the ends of the body and is slrived at its ends respectively, as indicated at 17, to a feather edge so as to form a smooth joint with an inner tube.. The flap 16 is preferably of rubber.

In Figures 2 and 3 of the drawings, I have shown the flap applied, a conventional rim being indicated at 18, tire casing Lat 19 and inner tube at 20. Initially, the body 10 Vis placed about the inner tube 20 and the edges` 12 ofthe sides 11 thereof brought into abutting relation when, as shown, the iiap 16 will overlie the joint between said edges for protecting the inner tube. The straps lll are then wrapped, in opposite directions,

Vsnugly about the body and, as will be obextend between such latter bead and the other side flange of the rim. As will be observed, the straps are of such length that the projecting terminals thereof may be grasped for pulling the straps more or less taut about thel boot body and, after the tire has been inflated, said projecting terminals may, if desired, be cut off flush with Y the free edges of the side fianges of the rim so as to avoid an otherwise possible un sightly appearance of said terminals.

As will now be seen, when the tire is iniiated, the ends of the straps 14 will be firmly anchored between the beads of the tire casingv and the rim so that these straps will thus serve to reinforce and retain the boot body against the bulging pressure of the inner tube. Premature failure of the boot will thus be precluded and furthermore, the boot will serve to retain the inner tube even though the tire casing is badly torn or ruptured. Since, as will be understood in view of the foregoing, the combined width of the straps 141 is nearly equal to the lengt-h ofthe boot body and since each of the straps extends entirely around the body,`

saidV straps will forma protecting covering for the body, reinforcing the body against iuptuie While7 at the saune time, the straps will individually tend to snub the body against opening` movement at the joint between the sides thereof.

Having thus described the invention, claim:

l. in inner tube boot including a body having sides and provided with retaining sti-ups extending 'iiioin said sides and di,- pesed to be Wi'npped in opposite directions about the body7 seid straps inwing a coinbined Width to oiin protecting coyeiingg` for the body when Wrapped thei'eabout.

2. in inner tube boot including` a body ham/'ing` `sides and provid ld with s back having; `straps G51-tending ioni ssic sides und disposed to be Wrapped in opp-osito direc tions about the body.

in innei tube boot including s split body piloyided with n bach having stisps vextending from opposite edges thereof and disposed to be Wrapped in opposite directions about the body ovei' the split theein.

4e. [gn inner tube boot inchiding a split body having straps disposed to extend in crossed ieistion beneath the beads of a tiie easing to be snchoied between said beads and n fini foi1 i'eteining` the body againstV opening movement et the split therein.

An inner tube boot inciuding n spht Iv' body having straps disposed to be wifi-upped in opposite di'eotions about the'body ovei` the split therein to extend et theii 'iiee endsI in ciossed ie'lstii'm beneath thebeads 0IP s tire casing' to be rsnchoi'ed between seid beads sind a rim 'foi' i'etsining the body extending in ciossed relation beneath the beads oil-the tiie casing and enc-honed bef tween said bends and the iiin for -etaining the boot against opening` movement et the split therein.

in testimony whereof my signature. 

